Ideal battery voltage is 12v. With vehicle running ideal alternator output is 14v. This is easily found with a multimeter.Does the E brake light stay on all the time? Check the brake fluid. Could be low setting off the light.

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Eight Time ToTM Winner. July 2013, December 2013, July 2014, December 2014, May 2015, August 2016, February 2017, September 2017

You guys where right. I took the truck into the dealership to have them look at it.. I wanted to make sure the problem was gone before next weeks trip.. It ended up being two different things. They said the brake fluid was real real real bad, and the battery terminals where corroded. The alternator ended up being fine. . $190 with an oil change.

The ex has been driving the truck for the last month or so, so the lights might have appeared at different times. I was looking for a common problem, and the internet told me alternator..... Damn you internet....